Alert archive / Wisconsin / Winter Weather Advisories in 2021

Winter Weather Advisory 2, NWS Milwaukee, WI

January 13, 202112 counties in Wisconsin

NWS Milwaukee, WI issued this winter weather advisory at Jan 13, 2021, 2:25 PM CST for 12 counties in Wisconsin. It took effect at Jan 14, 2021, 12:00 PM CST. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Jan 13, 2021, 2:25 PM CST (20:25 UTC)
In effect from
Jan 14, 2021, 12:00 PM CST
Expired
Jan 15, 2021, 5:18 AM CST
In force
17 hr
Issued by
NWS Milwaukee, WI

Counties Columbia County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Lafayette County, WI, Marquette County, WI, Sauk County, WI, Sheboygan County, WI, Washington County, WI

The radar

The Milwaukee radar (KMKX), 67 km from the middle of the area, began a volume at 20:29 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.4 hours before the alert went out and 153 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2021-01-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2021-01-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1055 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

581 
WWUS43 KMKX 132025
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
225 PM CST Wed Jan 13 2021

WIZ046-047-056-057-062-067-140430-
/O.NEW.KMKX.WW.Y.0002.210114T1600Z-210115T0600Z/
Marquette-Green Lake-Sauk-Columbia-Iowa-Lafayette-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Dodgeville, Mineral Point, Barneveld, Darlington, 
Shullsburg, Benton, Belmont, Argyle, and Blanchardville
225 PM CST Wed Jan 13 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THURSDAY TO
MIDNIGHT CST THURSDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 
  inches.

* WHERE...Portions of south central Wisconsin.

* WHEN...From 10 AM Thursday to midnight CST Thursday night.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall
  and low visibilites could impact the afternoon and evening 
  commute and cause hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
10 follow-up statements
412 
WWUS43 KMKX 140225
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
825 PM CST Wed Jan 13 2021

WIZ046-047-056-057-062-067-141030-
/O.CON.KMKX.WW.Y.0002.210114T1600Z-210115T0600Z/
Marquette-Green Lake-Sauk-Columbia-Iowa-Lafayette-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Dodgeville, Mineral Point, Barneveld, Darlington, 
Shullsburg, Benton, Belmont, Argyle, and Blanchardville
825 PM CST Wed Jan 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THURSDAY
TO MIDNIGHT CST THURSDAY NIGHT...

* WHAT...Snow will develop later Thursday morning or early
  afternoon. Total snow accumulations of 2 to 4 inches are
  expected.

* WHERE...Portions of south central Wisconsin including Reedsburg,
  Portage, Mineral Point and Darlington. 

* WHEN...From 10 AM Thursday to midnight CST Thursday night.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites could impact the afternoon and evening 
  commute and cause hazardous driving conditions.

* ADDITIONAL DETAILS...The snow may be initially mixed with rain
  or sleet as it develops later Thursday morning or Thursday
  afternoon.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
MBK
489 
WWUS43 KMKX 141004
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
404 AM CST Thu Jan 14 2021

WIZ063-068-141815-
/O.EXB.KMKX.WW.Y.0002.210114T1800Z-210115T1200Z/
Dane-Green-
Including the cities of Madison, Monroe, and Brodhead
404 AM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 6 AM CST
FRIDAY...

* WHAT...Total snow accumulations of 2 to 4 inches. Mixed
  precipitation possible at times.

* WHERE...Dane and Green Counties.

* WHEN...From noon today to 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites could impact the afternoon and evening 
  commute and cause hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ051-052-058-059-141815-
/O.EXB.KMKX.WW.Y.0002.210115T0000Z-210115T1200Z/
Fond du Lac-Sheboygan-Dodge-Washington-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, Oostburg, Beaver Dam, Waupun, Mayville, West Bend,
Germantown, and Hartford
404 AM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 AM CST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches.
  Mixed precipitation possible at times.

* WHERE...Fond du Lac, Sheboygan, Dodge and Washington Counties.

* WHEN...From 6 PM this evening to 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites could impact the afternoon and evening 
  commute and cause hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ046-047-056-057-062-067-141815-
/O.EXT.KMKX.WW.Y.0002.210114T1800Z-210115T1200Z/
Marquette-Green Lake-Sauk-Columbia-Iowa-Lafayette-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Dodgeville, Mineral Point, Barneveld, Darlington, 
Shullsburg, Benton, Belmont, Argyle, and Blanchardville
404 AM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM NOON TODAY TO 6 AM
CST FRIDAY...

* WHAT...Snow will develop shortly after noon. Total snow
  accumulations of 2 to 4 inches are expected. Mixed precipitation
  will be possible at times.

* WHERE...Portions of south central Wisconsin including 
  Reedsburg, Portage, Mineral Point and Darlington.

* WHEN...From noon today to 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites could impact the afternoon and evening 
  commute and cause hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
128 
WWUS43 KMKX 141502
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
902 AM CST Thu Jan 14 2021

WIZ046-047-056-057-062-063-067-068-142315-
/O.CON.KMKX.WW.Y.0002.210114T1800Z-210115T1200Z/
Marquette-Green Lake-Sauk-Columbia-Iowa-Dane-Lafayette-Green-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Dodgeville, Mineral Point, Barneveld, Madison, Darlington, 
Shullsburg, Benton, Belmont, Argyle, Blanchardville, Monroe, 
and Brodhead
902 AM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO
6 AM CST FRIDAY...

* WHAT...Total snow accumulations of 2 to 5 inches. Mixed 
  precipitation possible at times.

* WHERE...Portions of south central Wisconsin.

* WHEN...From noon today to 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall
  and low visibilites could impact the afternoon and evening
  commute and cause hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ051-052-058-059-142315-
/O.CON.KMKX.WW.Y.0002.210115T0000Z-210115T1200Z/
Fond du Lac-Sheboygan-Dodge-Washington-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, Oostburg, Beaver Dam, Waupun, Mayville, West Bend,
Germantown, and Hartford
902 AM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 AM CST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 4 
  inches. Mixed precipitation possible at times.

* WHERE...Sheboygan, Fond du Lac, Washington and Dodge Counties.

* WHEN...From 6 PM this evening to 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall
  and low visibilites could impact the afternoon and evening
  commute and cause hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
DDV
052 
WWUS43 KMKX 142036
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
236 PM CST Thu Jan 14 2021

WIZ046-047-056-057-062-063-067-068-150445-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Marquette-Green Lake-Sauk-Columbia-Iowa-Dane-Lafayette-Green-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Dodgeville, Mineral Point, Barneveld, Madison, Darlington, 
Shullsburg, Benton, Belmont, Argyle, Blanchardville, Monroe, 
and Brodhead
236 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
FRIDAY...

* WHAT...Total snow accumulations of 2 to 5 inches. Mixed 
  precipitation possible at times.

* WHERE...Portions of south central Wisconsin.

* WHEN...Until 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall
  and low visibilites could impact the evening commute and cause 
  hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ051-052-058-059-150445-
/O.CON.KMKX.WW.Y.0002.210115T0000Z-210115T1200Z/
Fond du Lac-Sheboygan-Dodge-Washington-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, Oostburg, Beaver Dam, Waupun, Mayville, West Bend,
Germantown, and Hartford
236 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO 6 AM CST FRIDAY...

* WHAT...Total snow accumulations of 2 to 4 inches. Mixed 
  precipitation possible at times.

* WHERE...Sheboygan, Fond du Lac, Washington and Dodge Counties.

* WHEN...From 6 PM this evening to 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall
  and low visibilites could impact the evening commute and cause 
  hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
244 
WWUS43 KMKX 142353
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
553 PM CST Thu Jan 14 2021

WIZ046-047-056-057-062-063-067-068-150800-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Marquette-Green Lake-Sauk-Columbia-Iowa-Dane-Lafayette-Green-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Dodgeville, Mineral Point, Barneveld, Madison, Darlington, 
Shullsburg, Benton, Belmont, Argyle, Blanchardville, Monroe, 
and Brodhead
553 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
FRIDAY...

* WHAT...Areas of rain becoming mixed with and changing to snow
  this evening. Snow totals mostly in the 2 to 5 inch range. Snow
  will be moderate to briefly heavy this evening.  

* WHERE...Portions of south central Wisconsin including Madison,
  Reedsburg, Monroe and Berlin. 

* WHEN...Until 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall
  and low visibilites will impact the late evening commute in some
  areas and cause hazardous driving conditions.

* ADDITIONAL DETAILS...Areas of light rain and light snow are
  changing to all snow along and south of a line from Dodgeville
  to Elkhorn. This change over will continue to progress northward
  through early evening. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ051-052-058-059-150800-
/O.CON.KMKX.WW.Y.0002.210115T0000Z-210115T1200Z/
Fond du Lac-Sheboygan-Dodge-Washington-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, Oostburg, Beaver Dam, Waupun, Mayville, West Bend,
Germantown, and Hartford
553 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
FRIDAY...

* WHAT...Areas of rain and snow will transition to mostly snow
  this evening. The snow will be moderate to briefly heavy. Snow
  accumulations of 1 to 4 inches away from Lake Michigan are
  expected. More of rain and snow mix closer to the lake will keep
  snow totals close to the lake up to 1 inch. 

* WHERE...Sheboygan, Fond du Lac, Washington and Dodge Counties.

* WHEN...From 6 PM this evening to 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites could impact the evening commute and cause 
  hazardous driving conditions.

* ADDITIONAL DETAILS...Areas of light rain and light snow will
  affect the area early this evening as it transitions to a
  steadier snow inland and rain and snow mix closer to Lake 
  Michigan. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
Kavinsky
108 
WWUS43 KMKX 150217
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
817 PM CST Thu Jan 14 2021

WIZ046-047-056-057-062-063-067-068-151030-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Marquette-Green Lake-Sauk-Columbia-Iowa-Dane-Lafayette-Green-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Dodgeville, Mineral Point, Barneveld, Madison, Darlington, 
Shullsburg, Benton, Belmont, Argyle, Blanchardville, Monroe, 
and Brodhead
817 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
FRIDAY...

* WHAT...Snow was falling across most of the area. The snow will
  continue through the evening and will occasionally fall at a
  moderate rate. Overnight snowfall totals are still expected in
  the 2 to 5 inch range. The snow will taper off later tonight. 

* WHERE...Portions of south central Wisconsin including Madison, 
  Reedsburg, Monroe and Berlin.

* WHEN...Until 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall
  and low visibilites will impact overnight driving and result in
  hazardous driving conditions.  

* ADDITIONAL DETAILS...The area from Janesville west to Monroe and
  Darlington has received between 1 and 2 inches of snow so far,
  according to local law enforcement. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ051-052-058-059-151030-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Fond du Lac-Sheboygan-Dodge-Washington-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, Oostburg, Beaver Dam, Waupun, Mayville, West Bend,
Germantown, and Hartford
817 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
FRIDAY...

* WHAT...A mix of light rain and snow will quickly change over to
  all snow away from Lake Michigan in the next 1-2 hours, while a
  rain and snow mix continues close to the lake. The snow will 
  fall occasionally at a moderate rate late this evening. Snowfall
  of 1 to 4 inches away from Lake Michigan are expected. More of 
  a rain and snow mix closer to the lake will keep snow totals up 
  to 1 inch.

* WHERE...Sheboygan, Fond du Lac, Washington and Dodge Counties.

* WHEN...From 6 PM this evening to 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites could impact the evening commute and cause 
  hazardous driving conditions.

* ADDITIONAL DETAILS...The leading edge of mostly snow extended
  from near Brandon to Port Washington and was spreading quickly
  north.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
MBK
557 
WWUS43 KMKX 150332
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
932 PM CST Thu Jan 14 2021

WIZ046-047-056-057-062-063-067-068-151145-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Marquette-Green Lake-Sauk-Columbia-Iowa-Dane-Lafayette-Green-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Dodgeville, Mineral Point, Barneveld, Madison, Darlington, 
Shullsburg, Benton, Belmont, Argyle, Blanchardville, Monroe, 
and Brodhead
932 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
FRIDAY...

* WHAT...Snow was falling across most of the area. The snow will
  continue through the evening and will occasionally fall at a
  moderate rate. Overnight snowfall totals are still expected
  mostly in the 2 to 4 inch range. The snow will taper off later 
  tonight around and after midnight.

* WHERE...Portions of south central Wisconsin including Madison, 
  Reedsburg, Monroe and Berlin.

* WHEN...Until 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites will impact overnight driving and result 
  in hazardous driving conditions.

* ADDITIONAL DETAILS...Most areas have reported between one and
  three inches of snowfall so far. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ051-052-058-059-151145-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Fond du Lac-Sheboygan-Dodge-Washington-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, Oostburg, Beaver Dam, Waupun, Mayville, West Bend,
Germantown, and Hartford
932 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
FRIDAY...

* WHAT...A mix of light rain and snow will continue to change over
  to mostly snow away from Lake Michigan late this evening, while
  a rain and snow mix continues closer to the lake. The snow will
  fall occasionally at a moderate rate late this evening. Snowfall
  of 1 to 3 inches away from Lake Michigan is expected. More of a
  rain and snow mix closer to the lake will keep snow totals less
  than an inch. 

* WHERE...Sheboygan, Fond du Lac, Washington and Dodge Counties.

* WHEN...Until 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites could impact the evening commute and cause 
  hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
Kavinsky
484 
WWUS43 KMKX 150519
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1119 PM CST Thu Jan 14 2021

WIZ062-063-067-068-150630-
/O.CAN.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Iowa-Dane-Lafayette-Green-
Including the cities of Dodgeville, Mineral Point, Barneveld, 
Madison, Darlington, Shullsburg, Benton, Belmont, Argyle, 
Blanchardville, Monroe, and Brodhead
1119 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Accumulating snow has ended for the remainder of the night. Hence
the Winter Weather Advisory has been cancelled. 

$$

WIZ046-047-056-057-151200-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Marquette-Green Lake-Sauk-Columbia-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
and Lodi
1119 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
FRIDAY...

* WHAT...Snow will taper off around and shortly after midnight.
  Snowfall totals of 2 to 4 inches are expected across most of the
  area. 

* WHERE...Portions of south central Wisconsin including Reedsburg,
  Portage, Montello and Berlin.

* WHEN...Until 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites will impact overnight driving and result 
  in hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ051-052-058-059-151200-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Fond du Lac-Sheboygan-Dodge-Washington-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, Oostburg, Beaver Dam, Waupun, Mayville, West Bend,
Germantown, and Hartford
1119 PM CST Thu Jan 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
FRIDAY...

* WHAT...Snow will taper off around or shortly after midnight. The
  snow will be mixed with rain at times closer to Lake Michigan.
  Snowfall of 1 to 3 inches away from Lake Michigan is expected.
  The rain and snow mix closer to the lake will keep snow totals 
  less than an inch.

* WHERE...Sheboygan, Fond du Lac, Washington and Dodge Counties.

* WHEN...Until 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites could impact the evening commute and cause 
  hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
Kavinsky
822 
WWUS43 KMKX 151000
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
400 AM CST Fri Jan 15 2021

WIZ046-047-056-057-151200-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Marquette-Green Lake-Sauk-Columbia-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
and Lodi
400 AM CST Fri Jan 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...

* WHAT...Freezing Drizzle will linger this morning.

* WHERE...Portions of south central Wisconsin including 
  Reedsburg, Portage, Montello and Berlin.

* WHEN...Until 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites will impact overnight driving and result 
  in hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

WIZ051-052-058-059-151200-
/O.CON.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Fond du Lac-Sheboygan-Dodge-Washington-
Including the cities of Fond Du Lac, Plymouth, Sheboygan Falls, 
Howards Grove, Oostburg, Beaver Dam, Waupun, Mayville, West Bend,
Germantown, and Hartford
400 AM CST Fri Jan 15 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST EARLY
THIS MORNING...

* WHAT...Freezing Drizzle will linger this morning.

* WHERE...Sheboygan, Fond du Lac, Washington and Dodge Counties.

* WHEN...Until 6 AM CST Friday.

* IMPACTS...Plan on slippery road conditions. Moderate snowfall 
  and low visibilites could impact the evening commute and cause 
  hazardous driving conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
707 
WWUS43 KMKX 151118
WSWMKX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
518 AM CST Fri Jan 15 2021

WIZ046-047-051-052-056>059-151230-
/O.CAN.KMKX.WW.Y.0002.000000T0000Z-210115T1200Z/
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-
Including the cities of Montello, Westfield, Oxford, Neshkoro, 
Endeavor, Berlin, Princeton, Markesan, Fond Du Lac, Plymouth, 
Sheboygan Falls, Howards Grove, Oostburg, Baraboo, Reedsburg, 
Prairie Du Sac, Sauk City, Portage, Columbus, Lake Wisconsin, 
Lodi, Beaver Dam, Waupun, Mayville, West Bend, Germantown, 
and Hartford
518 AM CST Fri Jan 15 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Major winter weather impacts are over with this event, however 
areas of light snow, drizzle and slick spots will remain this 
morning. Take care and leave extra time for travel as crews clean 
local roads this morning.

$$

What forecasters said that day

The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before this winter weather advisory went out at Jan 13, 9:35 AM CST, 4 hours 50 minutes earlier.

Area forecast discussion, Jan 13, 9:35 AM CST, 4 hours 50 minutes before
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
935 AM CST Wed Jan 13 2021

.UPDATE...
(Issued 935 AM CST Wed Jan 13 2021)

Watching some light reflectivities west of Madison, but there is a
decent amount of dry air. Would expect some virga, but can't rule
out a few flurries or sprinkles. Otherwise it should be a nice day
with highs in the mid 30s to near 40.

RAH

&&

.SHORT TERM...
(Issued 405 AM CST Wed Jan 13 2021)

Today through Friday:

A warm front will lift across the state today bringing warm air
advection along with it. Unfortunately, that advection will come
with a price, as we are expected to cloud over again for the
daytime hours. Highs today will be in the upper 30s.

Clouds will get thicker and lower tonight ahead an approaching
cold front in association with a low over south central Canada.
Models then depict a cutoff 500mb low diving southeast out of
Canada and a sfc low forming along a triple point over Wisconsin
during the day on Thursday. This scenario would put us in line for
a very quick punch of snow as the sfc low deepens during the late
morning hours and then continuing into Thursday evening before dry
air moves in aloft. The sfc low is then projected to stack with
the cutoff low aloft and spin and meander during the day on Friday
while gradually weakening, keeping some lingering light snow
showers around. When all is said and done through Friday a wide
area of at least 2 inches looks possible for southern Wisconsin,
with less by the lakeshore and more inland, north and west of
Madison, where wrap around precipitation from the meandering low
could potentially add to totals.

CMiller

&&

.LONG TERM...
(Issued 405 AM CST Wed Jan 13 2021)

Friday night through Sunday night:

Cutoff energy will continue to slowly push east of the region Friday
night into Saturday, with another shortwave progged to dig across
the region Saturday night/Sunday. The departure of the cutoff low
will bring a break in the on and off snow showers on Saturday, but
as this next wave arrives expect additional chances for on and off
snow showers through the rest of the weekend.

Temperatures look to remain a few degrees above normal for Saturday,
with a cool down expected for the latter half of the weekend as
stronger cold air advection is progged to increase across the
region. This cool down doesn't look like anything outside of the
ordinary for this time of year. In fact, this colder airmass will
actually bring temperatures back down to near-normal for this time
of year, highs in the 20s and lows in the teens for Sunday.

Monday through Wednesday:

Subsidence behind the departing shortwave looks to bring a dry start
to next week, but additional shortwave activity is progged to either
clip or rotate down across the region Tuesday/Wednesday. This does
look to reinforce the cold air advection across the region early on,
so expect the colder conditions to linger into at least Tuesday. By
the middle part of next week, Wisconsin looks to be bisected by the
lingering colder air across the northern half of the state, with
warmer air beginning to advect in across the southern half. Thus,
temperatures look to warm a few degrees above normal towards the
middle part of next week.

Anderson

&&

.AVIATION...
(Issued 935 AM CST Wed Jan 13 2021)

VFR conditions are expected throughout the day today, ceilings
around 10,000 feet are moving in from the west. Could see some
virga, otherwise no precipitation is expected. Winds will be from
the south to southwest into Thursday.

Chances for snow move in late Thursday morning into Thursday
afternoon. Expect MVFR to IFR ceilings and visibilities with
snowfall.

RAH

&&

.MARINE...
(Issued 405 AM CST Wed Jan 13 2021)

Modest southwesterly wind gusts will be possible over the far
northern end of Lake Michigan this morning, and then the southern
end of Lake Michigan in the afternoon in association with some
warm air advection.

There'll be a lull in wind gusts before southerly winds intensify
in association with a deepening low pressure system Thursday
afternoon

CMiller

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...None.
&&

Visit us at weather.gov/milwaukee

Follow us on Facebook, Twitter, and YouTube at:
www.facebook.com/NWSMilwaukee
www.twitter.com/NWSMilwaukee
www.youtube.com/NWSMilwaukee
Hazardous weather outlook, Jan 13, 3:23 AM CST, 11 hours 2 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
323 AM CST Wed Jan 13 2021

WIZ046-047-051-052-056>060-062>072-140930-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
323 AM CST Wed Jan 13 2021

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Snow is expected to move through the area during the afternoon
hours on Thursday and continue into the night hours before
largely ending during early Friday morning. Periodic light snow
showers are then expected through Friday and may linger into
Saturday. Light snow accumulation is expected with highest amounts
north and west of Madison.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

LMZ643>646-140930-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
323 AM CST Wed Jan 13 2021

This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Winds may approach Small Craft Advisory levels Thursday night.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-140930-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
323 AM CST Wed Jan 13 2021

This Hazardous Weather Outlook is for the open waters of Lake Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

No hazardous weather is expected at this time.

www.weather.gov/mkx

Nearby

Winter Weather Advisories in Wisconsin, 2021Every winter weather advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.